Year	% of children ages 12-23 months
1980	55.60915205109067
1981	68.74964742857985
1982	70.95839592485078
1983	72.68588876465583
1984	78.31684058516414
1985	79.54677166485145
1986	82.28656873728603
1987	83.43764481279966
1988	83.9994735556189
1989	86.40891482653983
1990	88.47469421333858
1991	88.76467511926899
1992	86.14344508993872
1993	86.97184430531684
1994	90.94318532457017
1995	90.25674113673045
1996	92.77513487815625
1997	90.45665127196439
1998	91.13493168395706
1999	93.23451026780786
2000	93.1655168268341
2001	94.68350868765849
2002	94.83243147366022
2003	95.80624267866501
2004	95.65369817414273
2005	95.89002474394871
2006	96.27657730227958
2007	96.02226845809453
2008	96.1414392729131
2009	95.748870003825
2010	95.74505652922852
2011	96.07819413789407
2012	95.64492410092967
2013	95.47970906573681
2014	95.68818322699191
2015	95.46921631019883
2016	95.5053694255449
2017	94.99600337431326
2018	94.91798749667679
2019	94.92020241143243
2020	94.02257670143203
2021	94.6250317198321
2022	94.57985849147907